<template>
  <view>
    <!-- 搜索 -->
    <view class="search-box">
      <my-search @click="gotoSearch"></my-search>
    </view>
    <!-- 轮播图区域 -->
    <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" circular="true">
      <swiper-item v-for="(item,i) in swiperList" :key="i">
        <navigator class="swiper-item" :url="'/subpkg/goods_detail/goods_detail?goods_id='+item.goods_id ">
          <image :src="item.image_src"></image>
        </navigator>
      </swiper-item>
    </swiper>
    <!--分类导航区域-->
    <view class="nav-list">
      <view class="nav-item" v-for="(item,i) in navList" :key="i" @click="navClickHandler(item)">
        <image :src="item.image_src" class="nav-img"></image>
      </view>
    </view>
    <!--楼层区域-->
    <view class="floor-list">
      <view class="floor-item" v-for="(item,i) in floorList" :key="i">
        <!--楼层标题-->
        <image :src="item.floor_title.image_src" class="floor-title"></image>
        <!--楼层内部图片-->
        <view class="floor-img-box">
          <!-- 楼层内部左侧大图片的盒子 -->
          <navigator class="left-img-box" :url="item.product_list[0].url">
            <image :src="item.product_list[0].image_src" :style="{width:item.product_list[0].image_width + 'rpx'}"
              mode="widthFix"></image>
          </navigator>
          <!-- 楼层内右侧4个小图片的盒子 -->
          <view class="right-img-box">
            <navigator class="right-img-item" v-for="(item2,i2) in item.product_list" :key="i2" v-if="i2!==0" :url="item2.url">
              <image :src="item2.image_src" mode="widthFix" :style="{width:item2.image_width + 'rpx'}"></image>
            </navigator>
          </view>
        </view>
        <!-- 楼层内部图片 -->
      </view>
      <!-- floor-item -->
    </view>
  </view>
</template>

<script>
  export default {
    data() {
      return {
        //1.轮播图的数据列表，默认为空数组
        swiperList: [],
        navList: [],
        floorList: []
      };
    },
    onLoad() {
      //2.在小程序页面刚加载的时候调用获取轮播图数据的方法
      this.getSwiperList();
      //调用获取分类导航栏的方法
      this.getNavList();
      //调用获取楼层列表数据的方法
      this.getFloorList();
    },
    methods: {
      gotoSearch(){
        uni.navigateTo({
          url:'/subpkg/search/search'
        })
      },
      //3.获取轮播图数据的方法
      async getSwiperList() {
        //3.1发起请求
        const {data:res} = await uni.$http.get('/api/public/v1/home/swiperdata');
       // console.log(res);
        //3.2若请求失败
        if (res.meta.status !== 200) {
          return uni.$showMsg()
        }
        //3.3请求成功，为data中的数据赋值
        this.swiperList = res.message;
      }, //getSwiperList()
      async getNavList() {
        const {data:res} = await uni.$http.get('/api/public/v1/home/catitems')
        if (res.meta.status !== 200) {
          return uni.$showMsg()
        }
        this.navList = res.message;

      }, //getNavList()
      //分类导航区域的方法
      navClickHandler(item) {
        //判断点的是哪个nav
        if (item.name === '分类') {
          uni.switchTab({
            url: '/pages/cate/cate'
          })
        }
      }, //navClickHandler
      //楼层
      async getFloorList() {
        const {data:res} = await uni.$http.get('/api/public/v1/home/floordata');
        if (res.meta.status !== 200) {
          return uni.$showMsg()
        }
        //通过双层forEach循环，处理url地址
        res.message.forEach(floor =>{
          floor.product_list.forEach(prod =>{
            prod.url = '/subpkg/goods_list/goods_list?' + prod.navigator_url.split('?')[1]
          })
        })
        
        this.floorList = res.message;
      }//getFloorList
    } //methods
  } //default
</script>

<style lang="scss">
  //轮播图
  swiper {
    height: 300rpx;

    .swiper-item,
    image {
      width: 100%;
      height: 100%;
    }
  }

  //分类导航栏
  .nav-list {
    display: flex;
    justify-content: space-around;
    margin: 15px 0;

    .nav-img {
      width: 128rpx;
      height: 140rpx;
    }
  }

  //楼层标题
  .floor-title {
    height: 60rpx;
    width: 100%;
    display: flex;
  }
  // 楼层内部图片
  .right-img-box{
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
  }
  .floor-img-box{
    display: flex;
    padding-left: 10rpx;
  }

.search-box{
  position:sticky;
  top: 0;
  z-index: 999;
}

</style>
